Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

25. The Urinary System

Introduction to the Urinary System

Anatomy & Physiology

25. The Urinary System

Introduction to the Urinary System

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Multiple Choice

A 24-hour urine test is used to determine the ________ of the kidneys.

size

blood supply

location

function

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Verified step by step guidance

Understand the purpose of a 24-hour urine test: It is a diagnostic tool used to evaluate how well the kidneys are functioning by measuring substances in the urine over a full day.

Recognize that the kidneys play a vital role in filtering blood, removing waste products, and maintaining fluid and electrolyte balance. A 24-hour urine test helps assess these processes.

Eliminate incorrect options: 'Size' refers to the physical dimensions of the kidneys, which are typically assessed using imaging techniques like ultrasound or CT scans. 'Blood supply' is evaluated using tests like Doppler ultrasound or angiography. 'Location' is determined through imaging studies, not urine tests.

Focus on the correct option: 'Function' is the appropriate answer because the 24-hour urine test measures how effectively the kidneys are performing their filtration and excretion roles.

Conclude that the 24-hour urine test is specifically designed to assess kidney function by analyzing the concentration of various substances, such as creatinine, urea, and electrolytes, in the urine collected over 24 hours.